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https://issues.apache.org/jira/browse/HDFS-16654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gautham Banasandra resolved HDFS-16654.
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Fix Version/s: 3.4.0
Resolution: Fixed
Merged PR https://github.com/apache/hadoop/pull/4538 to trunk.
> Link OpenSSL lib for CMake deps check
> -------------------------------------
>
> Key: HDFS-16654
> URL: https://issues.apache.org/jira/browse/HDFS-16654
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: libhdfs++
> Affects Versions: 3.4.0
> Environment: Windows 10
> Reporter: Gautham Banasandra
> Assignee: Gautham Banasandra
> Priority: Major
> Labels: libhdfscpp, pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> CMake checks whether the required components of OpenSSL are available prior
> to building HDFS native client -
> https://github.com/apache/hadoop/blob/fac895828f714b5587b57900d588acac69880c1e/hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt#L130
> {code}
> check_c_source_compiles("#include
> \"${OPENSSL_INCLUDE_DIR}/openssl/evp.h\"\nint main(int argc, char **argv) {
> return !EVP_aes_256_ctr; }" HAS_NEW_ENOUGH_OPENSSL)
> {code}
> This check compiles but fails while linking on Windows -
> {code}
> src.obj : error LNK2019: unresolved external symbol EVP_aes_256_ctr
> referenced in function main
> [H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\CMakeFiles\CMakeTmp\cmTC_e391b.vcxproj]
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\CMakeFiles\CMakeTmp\Debug\cmTC_e391b.exe
> : fatal error LNK1120: 1 unresolved externals
> [H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\CMakeFiles\CMakeTmp\cmTC_e391b.vcxproj]
> Source file was:
> #include <openssl/evp.h>
> int main(int argc, char **argv) { return !EVP_aes_256_ctr; }
> {code}
> Thus, we need to link to the OpenSSL library prior to running this check.
> Please note that this check doesn't fail on Linux since CMake is able to pick
> it up from the standard location where libs are installed.
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